Tire tread



FIG. 1 is a perspective view of a tire tread, showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a side view thereof;

FIG. 4 is an enlarged perspective view of a section of the tire tread defined by lines 4-4 in FIG. 1;

FIG. 5 is an enlarged front view of a section of the tire tread as defined by lines 5-5 in FIG. 2; and,

FIG. 6 is an enlarged side view of a section of the tire tread as defined by lines 6-6 in FIG. 3.

The broken lines in FIGS. 1-6 show portions of the tire which form no part of the claimed design. 

CLAIM The ornamental design for a tire tread, as shown and described. 